Student or Learner
Being Russian native-speaker I wonder if there are any opportunities to find English native-speaker who can perform an edit of lecture for English-speaking medical students in Russia? The lecture is to be published in Russian journal and the editor may take a role of formal contributor.
I don't think you'll have much luck here as we are all volunteers. I think you need to pay a professional editor or proofreader.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.